Mini-14 barrel thread shoulder can't mount a sound suppressor?

[georgeib]

Mini14 threads.JPG

Here is a bad picture of the bare muzzle.

There isn't much of a shoulder. And it's tapered, not squared off like a .300 BLK Mini-14. Threads are 5/8 in x24.

My can will come with a flash hider. (556K-FLOW) What shoulder ring do I need to mount the can nice and straight?

First, nice choice of suppressor. You'll love it.

Second, is that picture really bad, or is that muzzle not threaded?

Either way, if you're gonna suppress the Mini 14, I would suggest getting the barrel re-threaded concentrically in 1/2x28. Use the flash hider the comes with.

ETA: Be careful using the shims that come from OSS/Huxwrx. The thick washer isn't perfectly flat and will mount the muzzle device crookedly.